نتایج جستجو برای: chlor alkali

تعداد نتایج: 16853  

Journal: :Journal of Natural Fibers 2023

Crotalaria juncea bast fibers a novel cellulose rich material is valorized by producing nanocrystals (CNCs) which gained much attention due to its unique properties. CNCs obtained during this study consisted of two steps: pretreatment C. obtain chemically purified followed sulfuric acid hydrolysis. Efficacy different methods chlor-alkali method (pre-treatment-I) and ultra sound assisted chlorin...

Journal: :Fermentation 2022

Residual process brine is a sustainable raw material for chlor-alkali electrolysis processes. This study investigates the influence of critical parameters on performance continuous treatment residual using halophilic microorganisms. The goal bioprocess an efficient degradation organic impurities formate, aniline, phenol, and 4,4′-methylenedianline from this stream. It was shown that formate cou...

Journal: :Chemosphere 2003
S Rémy P Prudent C Hissler J L Probst G Krempp

River bottom sediments and soils were collected from the industrialized Thur River basin (north-eastern France) to assess mercury contamination. The regional geochemical background level of total mercury was evaluated to calculate mercury contamination factors (Fc) in soils and river bottom sediments. Our estimate of the mean background mercury levels in river sediments and soils, not affected ...

Journal: :Bulletin of Environmental Contamination and Toxicology 2009
Zhong Sheng Zhang Dong Mei Zheng Qi Chao Wang Xian Guo Lv

We determined total and methyl mercury contents in soil, three earthworm species and their vomitus to study the species-specific differences of mercury bioconcentration in Huludao City, a heavily polluted region by chlor-alkali and nonferrous metal smelting industry in Liaoning Province, northeast China. Total and methyl mercury contents were 7.20 mg/kg and 6.94 ng/g in soil, 1.43 mg/kg and 43....

2008
Koichi Aoki Han Chen Jingyuan Chen

Ferrocene solubilized with poly(vinylpyrrolidone) in aqueous KCl solution exhibited a well-defined voltammetric peak at 1.33 V vs. Ag|AgCl at a platinum electrode. The wave was attributed to the oxidation of chloride to chlorine, demonstrated by smell of chlorine, by a view of formation of gas bubbles, by coloration through the reaction with diethyl-p-phenylene diamine, and by the increase in t...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2001
S Aymaz O Gross B Krakamp M Ortmann H P Dienes M Weber

Mercury is a silvery white liquid metal that is volatile at room temperature due to its high vapour pressure. It exists in different oxidation states and can form a number of compounds. Mercury and its compounds can be absorbed into the human body by inhalation, ingestion, and through the skin. It is toxic when certain threshold values are exceeded. Acute toxicity is due to the inactivation of ...

Journal: :Journal of hazardous materials 2013
Yailen Busto Filip M G Tack Luis M Peralta Xiomara Cabrera Luis E Arteaga-Pérez

The kinetics of mercury removal from solid wastes generated by chlor-alkali plants were studied. The reaction order and model-free method with an isoconversional approach were used to estimate the kinetic parameters and reaction mechanism that apply to the thermal decomposition of hazardous mercury wastes. As a first approach to the understanding of thermal decomposition for this type of system...

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